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The Salmon Ledger
NOEN

Fjølværet Ø

Site 26775 · Frøya municipality · Production area 6, Nordmøre og Sør-Trøndelag

Status unknown: not reported in week 39Operated by Måsøval Lisens AS · group Måsøval

Broodstock site: the limit may differ from the general one.

Follow this farmDownload CSV
unknownAdult female lice per fishNo count in week 39. Latest: 0.19 in week 19, 2026Week 39, 2026 · Norwegian Food Safety Authority · updated 01 Oct 2026
1Weeks above the limit in 2026of 19 weeks with a count · broodstock: limit may differCalculated by the Salmon Ledger · Norwegian Food Safety Authority · updated 01 Oct 2026
2Lice treatments in 2026Latest: Medicinal bath, week 7, 20262026 · Norwegian Food Safety Authority · updated 01 Oct 2026
0Active disease casesNone active · 1 earlierRegister since 26 Nov 2024 · Norwegian Food Safety Authority · updated 01 Oct 2026
1Wellboat visits in 2026by 1 vessel · latest 05 Feb 2026Derived from AIS · Norwegian Coastal Administration (AIS) · updated 01 Oct 2026
0Escapes reportedNone reportedSince 2006 · Directorate of Fisheries · updated 01 Oct 2026

Sea lice against the limit

Weekly average of adult female lice per fish, as reported by the company. For this site the limit is 0.2 in weeks 16–21 and 0.5 for the rest of the year. Hatched weeks have no count and count neither as above nor below. Broodstock site: the limit may differ from the general one.

2026

Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026Broodstock site: the limit may differ from the general one.
Show as table
Adult female lice per fish per week, 2026
WeekAdult female lice per fishLice limitStatus
10.120.5Below the limit
20.300.5Below the limit
30.470.5Near the limit
40.460.5Near the limit
50.460.5Near the limit
60.760.5Above the limit
70.270.5Below the limit
80.090.5Below the limit
90.130.5Below the limit
100.140.5Below the limit
110.180.5Below the limit
120.090.5Below the limit
130.160.5Below the limit
140.150.5Below the limit
150.160.5Below the limit
160.190.2Near the limit
170.180.2Near the limit
180.190.2Near the limit
190.190.2Near the limit
20unknown0.2Reported without a count
21unknown0.2Reported without a count
22unknown0.5Not reported
23unknown0.5Not reported
24unknown0.5Not reported
25unknown0.5Not reported
26unknown0.5Not reported
27unknown0.5Not reported
28unknown0.5Not reported
29unknown0.5Not reported
30unknown0.5Not reported
31unknown0.5Not reported
32unknown0.5Not reported
33unknown0.5Not reported
34unknown0.5Not reported
35unknown0.5Not reported
36unknown0.5Not reported
37unknown0.5Not reported
38unknown0.5Not reported
39unknown0.5Not reported

Earlier years

20253 of 52 weeks with a count above the limit
Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026Broodstock site: the limit may differ from the general one.
Show as table
Adult female lice per fish per week, 2025
WeekAdult female lice per fishLice limitStatus
10.000.5Below the limit
20.000.5Below the limit
30.000.5Below the limit
40.000.5Below the limit
50.000.5Below the limit
60.000.5Below the limit
70.000.5Below the limit
80.000.5Below the limit
90.000.5Below the limit
100.000.5Below the limit
110.000.5Below the limit
120.020.5Below the limit
130.000.5Below the limit
140.020.5Below the limit
150.020.5Below the limit
160.010.2Below the limit
170.050.2Below the limit
180.040.2Below the limit
190.010.2Below the limit
200.020.2Below the limit
210.030.2Below the limit
220.060.5Below the limit
230.040.5Below the limit
240.090.5Below the limit
250.060.5Below the limit
260.270.5Below the limit
270.260.5Below the limit
280.280.5Below the limit
290.060.5Below the limit
300.050.5Below the limit
310.050.5Below the limit
320.320.5Below the limit
330.190.5Below the limit
340.280.5Below the limit
350.480.5Near the limit
360.400.5Near the limit
370.160.5Below the limit
380.490.5Near the limit
390.390.5Below the limit
400.380.5Below the limit
410.420.5Near the limit
420.970.5Above the limit
431.110.5Above the limit
440.190.5Below the limit
450.120.5Below the limit
460.120.5Below the limit
470.160.5Below the limit
480.440.5Near the limit
491.580.5Above the limit
500.070.5Below the limit
510.010.5Below the limit
520.050.5Below the limit
20241 of 24 weeks with a count above the limit
Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026Broodstock site: the limit may differ from the general one.
Show as table
Adult female lice per fish per week, 2024
WeekAdult female lice per fishLice limitStatus
10.360.5Below the limit
21.290.5Above the limit
30.090.5Below the limit
40.200.5Below the limit
50.370.5Below the limit
60.340.5Below the limit
70.370.5Below the limit
80.350.5Below the limit
90.430.5Near the limit
100.420.5Near the limit
110.270.5Below the limit
120.400.5Near the limit
130.450.5Near the limit
140.380.5Below the limit
150.340.5Below the limit
160.150.2Below the limit
170.170.2Near the limit
180.170.2Near the limit
190.130.2Below the limit
200.100.2Below the limit
210.080.2Below the limit
220.260.5Below the limit
23unknown0.5Reported without a count
24unknown0.5Reported without a count
25unknown0.5Not reported
26unknown0.5Not reported
27unknown0.5Not reported
28unknown0.5Not reported
29unknown0.5Not reported
30unknown0.5Not reported
31unknown0.5Not reported
32unknown0.5Not reported
33unknown0.5Not reported
34unknown0.5Not reported
35unknown0.5Not reported
36unknown0.5Not reported
37unknown0.5Not reported
38unknown0.5Not reported
39unknown0.5Not reported
40unknown0.5Not reported
41unknown0.5Not reported
42unknown0.5Not reported
43unknown0.5Not reported
44unknown0.5Not reported
45unknown0.5Not reported
46unknown0.5Not reported
47unknown0.5Not reported
48unknown0.5Not reported
49unknown0.5Not reported
50unknown0.5Not reported
510.000.5Below the limit
520.000.5Below the limit
20230 of 13 weeks with a count above the limit (data from week 40)
Source: Norwegian Food Safety Authority, weekly lice counts reported by the companies · Limit: Regulation on sea lice control § 8 · Updated 01 Oct 2026Broodstock site: the limit may differ from the general one.
Show as table
Adult female lice per fish per week, 2023
WeekAdult female lice per fishLice limitStatus
400.170.5Below the limit
410.280.5Below the limit
420.440.5Near the limit
430.260.5Below the limit
440.310.5Below the limit
450.490.5Near the limit
460.210.5Below the limit
470.140.5Below the limit
480.300.5Below the limit
490.160.5Below the limit
500.140.5Below the limit
510.210.5Below the limit
520.420.5Near the limit

Treatments

Norwegian Food Safety Authority
  • Week 7, 2026
    Medicinal bathWhole site · Azamethiphos
  • Week 6, 2026
    Thermal delousing3 pens
  • Week 50, 2025
    Medicinal bath2 pens · Azamethiphos
  • Week 49, 2025
    Medicinal bath2 pens · Azamethiphos
Show all 24
  • Week 44, 2025
    Freshwater treatment, Mechanical delousing, Thermal delousing8 pens
  • Week 43, 2025
    Freshwater treatment, Thermal delousing4 pens
  • Week 41, 2025
    Mechanical delousing2 pens
  • Week 40, 2025
    Mechanical delousing, Thermal delousing8 pens
  • Week 39, 2025
    Mechanical delousing4 pens
  • Week 38, 2025
    Mechanical delousing1 pen
  • Week 37, 2025
    Mechanical delousing2 pens
  • Week 36, 2025
    Mechanical delousing5 pens
  • Week 33, 2025
    Mechanical delousing, Thermal delousing7 pens
  • Week 29, 2025
    Freshwater treatment, Thermal delousing10 pens
  • Week 28, 2025
    Freshwater treatment, Thermal delousing4 pens
  • Week 21, 2024
    Other treatment1 pen · Flatsetsundspyler
  • Week 20, 2024
    Other treatment1 pen · Flatsetsundspyler
  • Week 16, 2024
    Other treatment2 pens · Ferskvann + Thermolicer
  • Week 3, 2024
    Medicinal bath, Other treatment6 pens · Azamethiphos · Ferskvann + Thermolicer
  • Week 49, 2023
    Other treatment1 pen · Flatsetsundspyler
  • Week 48, 2023
    Other treatment3 pens · Flatsetsundspyler
  • Week 46, 2023
    Other treatment2 pens · Flatsetsundspyler
  • Week 45, 2023
    Other treatment1 pen · Flatsetsundspyler
  • Week 43, 2023
    Other treatment4 pens · Flatsetsundspyler

Disease

Norwegian Food Safety Authority

Escapes

Directorate of Fisheries

No escapes reported from this site since 2006.

Wellboat visits

1 visits in 2026

Visits are derived by us from the Coastal Administration's AIS positions: a fish carrier stationary within 500 metres of the farm for at least 30 minutes. The AIS archive lags about 17 days. A visit is not proof of infection.

ArrivalVesselPrevious farm (14 days)Duration
05 Feb 2026Njord KyaEldviktaren18 h 1 min
14 Dec 2025Ro ChiefUlvan1 h 15 min
10 Dec 2025Ro ChiefUlvan2 h 12 min
09 Dec 2025Ro ChiefUlvan1 h 12 min
29 Oct 2025Njord KyaHeggeset18 h 20 min
23 Oct 2025Njord KyaEspnestaren9 h 22 min
22 Oct 2025Njord KyaEspnestaren29 h 1 min
29 Sep 2025Njord KyaFlatøyan84 h 37 min
17 Aug 2025Njord KyaIlsøya 23 h 52 min
16 Aug 2025Njord KyaIlsøya 210 h 32 min
16 Jul 2025Njord KyaOr44 h 16 min
14 Jul 2025Njord KyaOr17 h 59 min
Show 18 older visits
ArrivalVesselPrevious farm (14 days)Duration
12 Jul 2025Njord KyaOr28 h 12 min
02 May 2025Ro SailorLangøya Kvaløya2 h 6 min
09 Apr 2025ViknatransHelligholmen1 h 21 min
08 Apr 2025ViknatransHelligholmen1 h 22 min
20 Dec 2024Ro ChiefLangøya Kvaløya1 h 10 min
19 Dec 2024Ro ChiefLangøya Kvaløya1 h 3 min
13 Jun 2024Froey VikingNordskag1 h 24 min
12 Jun 2024Froey VikingNordskag3 h 8 min
06 Jun 2024Froey VikingNordskag1 h 9 min
05 Jun 2024Froey VikingNordskag2 h 0 min
31 May 2024Froey VikingNordskag2 h 41 min
15 Apr 2024Ro FortuneNye Skorpa disease or zone there19 h 36 min
22 Jan 2024Ro FortuneFlatøyan2 h 29 min
21 Jan 2024Ro FortuneFlatøyan12 h 16 min
21 Jan 2024Ro FortuneFlatøyan7 h 1 min
20 Jan 2024Ro FortuneFlatøyan9 h 31 min
19 Jan 2024Ro FortuneFlatøyan23 h 23 min
18 Jan 2024Froey VikingHøybuvika1 h 21 min

Source: Norwegian Coastal Administration (AIS) · calculated by the Salmon Ledger · updated 01 Oct 2026

Who has reported

The companies that have submitted lice counts for this site, with the first and last week.

CompanyFromTo
Måsøval ASWeek 40, 2023Week 2, 2025
Måsøval Lisens ASWeek 3, 2025Week 21, 2026

Source: Norwegian Food Safety Authority (organisation number on each lice report)

Licences

Site MAB: 3,900 tonnes
LicenceTypeCapacityHolder
M FI 0002Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tMåsøval Lisens AS
M TV 0009Kommersiell / stamfiskSalmon, Rainbow trout, Trout780 tAquagen AS
ST F 0014Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tMåsøval Lisens AS
ST F 0062Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tMåsøval Lisens AS
ST F 0066Undervisning / matfiskSalmon780 tTrøndelag Fylkeskommune
ST HE 0006Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tMåsøval Lisens AS
ST HE 0014Kommersiell / matfiskSalmon, Rainbow trout, Trout788 tMåsøval Lisens AS
TR F 0010Kommersiell / matfiskSalmon, Rainbow trout, Trout1,000 tMåsøval Lisens AS
TR F 0011Kommersiell / matfiskSalmon, Rainbow trout, Trout1,000 tMåsøval Lisens AS

Source: Directorate of Fisheries, aquaculture register · updated 01 Oct 2026